Android-AltBeacon 库集成 java class

Question

我正在尝试将 altbeacon 功能集成到 android studio 的 java class 中，但由于 getActivity 而出现错误。我想在 onahter 活动中从这个 class 创建一个对象..

知道它是如何工作的吗？

当我在 protected void onCreate(Bundle savedInstanceState).

下的 activity 中添加 altbeacon class 时，效果非常好

public class detectRoom  implements BeaconConsumer {

    private List <IBeaconSensor> beaconList = new ArrayList <IBeaconSensor> ();

    private BeaconManager beaconManager;

    public detectRoom() {
     name="detectRoom";
    }
    private String detectRoomName(String raum) {
        return raum;
    }

    public void detectRoomMet () {

        for (int i = 0;i< beaconList.size() ;i++){

            if(beaconList.get(i).getName().equals("45")) {    // 6 = Minor of Ibeacon
                detectRoomName("Room3");

            }

            if(beaconList.get(i).getName().equals("55")) {
                detectRoomName("Room2");

            }

            if(beaconList.get(i).getName().equals("85")) {
                detectRoomName("Room1");

            }

            else {
                detectRoomName("UnknowRoom");

            }



        }
    }

    @Override
    public void onBeaconServiceConnect() {

        beaconManager = new BeaconManager(getApplicationContext());
        beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24"));
        this.beaconManager.setRangeNotifier(new RangeNotifier() {
            @Override
            public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
                if (beacons.size() > 0) {
                    beaconList.clear();
                    for(Iterator<Beacon> iterator = beacons.iterator(); iterator.hasNext();) {

                        beaconList.add(new IBeaconSensor (iterator.next().getId3().toString()));
                    }

                }
            }
        });
        try {
            this.beaconManager.startRangingBeaconsInRegion(new Region("MyRegionId", null, null, null));
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public Context getApplicationContext() {
        return null;
    }

    @Override
    public void unbindService(ServiceConnection serviceConnection) {
        this.beaconManager.unbind(this);
    }

    @Override
    public boolean bindService(Intent intent, ServiceConnection serviceConnection, int i) {
        return false;
    }

    public void bindBeacon() {
        beaconManager.bind(this);
    }

    public void unBindBeacon() {
        beaconManager.unbind(this);
    }
}

Answer 1

制作扩展 BeaconConsumer 的 POJO 时，您必须做两件事：

将对 Android 上下文的引用传递给 POJO。
将方法 bindService、unbindService、getApplicationContext 链接到上面的 Context。

像这样：

public class Pojo extends BeaconConsumer() {
    private Context mContext;
    public Pojo(Context context) {
      mContext = context;
    }
    @Override
    public Context getApplicationContext() {
        return mContext.getApplicationContext();
    }

    @Override
    public void unbindService(ServiceConnection serviceConnection) {
        mContext.unbindService(serviceConnection);
    }

    @Override
    public boolean bindService(Intent intent, ServiceConnection serviceConnection, int i) {
        return mContext.bindService(intent, serviceConnection, i);
    }

    ...

}

Android-AltBeacon 库集成 java class

Android-AltBeacon-library intergration in a java class

java

android

altbeacon